sizing irregular objects
Posted by Teresa W on Jan 29, 2010; 10:56am
URL: http://imagej.273.s1.nabble.com/sizing-irregular-objects-tp3689540.html
Hello, I want to size the bubbles in a solid foam with irregular bubble shapes and linked/fused bubbles, from micro Xray tomography data. After farting round endlessly with the granulometry and other filters, I have
*used the Process/Subtract backg/choosing Light backg and Create backg options on the raw image with decreasing pixel size
*thresholded the resulting image series to give only the most intense regions
I have a series of shapes of increasing resolution and decreasing size categories, near to the resolution of the raw image.
See
.
I now want to use this series to 'bin' the bubbles into size clases. Which must involve using the rolling ball series as masks to identify the maximal size a particular object falls into. And somehow carrying a numbering over on the finest resoluion rolling ball image. I want to do image subtraction, but with some kind of numbering attached.
Appreciate anyone with suggestions as to how I could go about this? Or other comments that will help me?
This data also sizes bubble intersections or 'throats'. If two spots merge when the ball pixel size is stepped down, the throat size must be between the two ball sizes.
Teresa
URL: http://imagej.273.s1.nabble.com/sizing-irregular-objects-tp3689540.html
Hello, I want to size the bubbles in a solid foam with irregular bubble shapes and linked/fused bubbles, from micro Xray tomography data. After farting round endlessly with the granulometry and other filters, I have
*used the Process/Subtract backg/choosing Light backg and Create backg options on the raw image with decreasing pixel size
*thresholded the resulting image series to give only the most intense regions
I have a series of shapes of increasing resolution and decreasing size categories, near to the resolution of the raw image.
See
.
I now want to use this series to 'bin' the bubbles into size clases. Which must involve using the rolling ball series as masks to identify the maximal size a particular object falls into. And somehow carrying a numbering over on the finest resoluion rolling ball image. I want to do image subtraction, but with some kind of numbering attached.
Appreciate anyone with suggestions as to how I could go about this? Or other comments that will help me?
This data also sizes bubble intersections or 'throats'. If two spots merge when the ball pixel size is stepped down, the throat size must be between the two ball sizes.
Teresa
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